Product ID: ST121WHD
The ST121WHD Wireless HD Video Extender Kit includes both a WHDI transmitter and WHDI receiver, enabling you to wirelessly send a full HD (1080p) video signal, as well as audio and IR, from a high-definition signal source to a remote HD display or projector located up to 30m (100ft) away.
The ST121WHD is a bundled kit, which provides both local and remote units, and an IR remote control, delivering a complete, end-to-end alternative for a single source-to-display digital signage connection.
A cost-effective solution, the wireless HD extender delivers full High-Definition video, as well as audio and Infrared (IR), eliminating the need for an expensive cable infrastructure to provide a wireless solution for settings where cabling may be undesirable, (e.g. in the middle of a room, boardroom, etc.) or difficult to install.
Compliant with both HDCP, and WHDI standards, this versatile WHDI transmitter/receiver kit ensures that even the latest devices will be able to pass a signal, with support for full 1080p resolutions and the accompanying digital audio. Plus, the kit enables you to control your source device remotely, using the IR extender for a complete HD extension solution.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
|Warranty Information||Warranty||2 Years|
|Connector(s)||1 - Local Unit Connectors||HDMI (19 pin)|
|1 - Remote Unit Connectors||HDMI (19 pin)|
|Humidity||5% ~ 90% RH|
|Indicators||2 - LED Indicators||Video Status Indicator|
|1 - LED Indicators||Wireless Network Status Indicator|
|Packaging Information||Package Length||27 cm [10,6 in]|
|Package Width||20 cm [7,9 in]|
|Package Height||90 mm [3,5 in]|
|Shipping (Package) Weight||1,4 kg [3,2 lb]|
|Performance||Max Distance||30 m / 100 ft|
|Maximum Digital Resolutions||1920x1080|
|Supported Resolutions||Widescreen: 1080p, 1080i, 720p, 480p
Standard: VGA(640X480), SVGA(800X600), XGA(1024X768), SXGA(1280X1024)
|Product Length||14,8 cm [5,8 in]|
|Product Width||97 mm [3,8 in]|
|Product Height||1,8 cm [0,7 in]|
|Weight of Product||440 g [15,5 oz]|
|Power||Power Source||AC Adapter Included|
|Input Voltage||100 - 240 AC|
|Output Voltage||5 DC|
|Center Tip Polarity||Positive|
|Special Notes / Requirements||Note||The maximum distance between the transmitter and the receiver is 30 meters. If the wireless signal is obstructed by walls, or other interference the signal quality and maximum distance will likely be reduced. The working Frequency band may vary with the relevant laws in different regions.|
|What's in the Box||1 - Included in Package||Wireless HD Transmitter|
|Wireless HD Receiver|
|IR Remote Control|
|IR Remote Extension Connector|
|2 - Included in Package||Positioning Stand|
|Universal Power Adapter (NA/UK/EU/AUS)|
Provides a high speed connection between HDMI®-enabled devices
Create Ultra HD connections between your High Speed HDMI®-equipped devices
Split an HDMI® source with accompanying audio to 2 displays
Replace your lost or failed power adapter
To get the highest quality signal from your source to your display when you use an HDMI extender, do the following:
Make sure that the HDMI versions of the source, extender, and destination are compatible. For example, if you require 3D support, make sure that all of the devices can support 3D over HDMI.
Use the least amount of adapters, splitters, or converters as possible. Each device that you use in your setup creates additional points of potential failure and creates more steps for an HDCP key to hop through, which may cause issues with older displays. For more information on HDCP, refer to the following FAQ: http://www.startech.com/faq/video_signal_converters_HDCP.
Use an HDMI extender that exceeds the requirements of the setup. For example, if you need to extend the signal 200 feet, it is best to use an extender capable of more than 200 feet.
Make sure that all of the CAT 5/6 runs are as straight as possible, with the least amount of coiling.
Make sure that all of the patches, wall jacks, and cables use the highest possible CAT specification, (for example, CAT 6), and were tested to conform to the standard.
Use patches, wall jacks, and cables with the same pin configuration. For more information on T568A versus T568B wiring, refer to the following FAQ: http://www.startech.com/faq/network_cables_a_vs_b_pinout.
Keep the cabling away from sources of high noise.
Make sure that you use adequate electrical grounding in your setup.
When you troubleshoot issues with a video extender, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:
Video and Ethernet cables
Video source (such as a DVD player or computer)
Video destination (such as a monitor or projector)
Note: When you are testing setup components, you should avoid using video adapters. For example, if you are converting a VGA source to HDMI for use with an HDMI extender, you should use an HDMI source when you test the components.
To test your setup components, try the following:
Use the cable, video extender, video source, and video destination in another setup to see if the problem is with the components or the setup.
Use a different cable, video extender, video source, and video destination in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.
When you test your cables, it is recommended that you do the following:
Test each cable individually.
Use short cables when you are testing.
When you test the video source and video destination, it is recommended that you do the following:
Remove the video extender from your setup and test to make sure that the video source and video destination work together without the video extender.
Test to make sure that the video source and video destination work together at the resolution that you want to use.
Note: In order for your setup to work properly, the video source, extender, and destination all need to support the resolution that you are using.
You should only use video converters and extenders if it is absolutely necessary to do so. In many cases, most video converters and extenders are not necessary if you purchase the correct cable.
The following table lists the maximum length of cable for common video standards.
|Video standard||Maximum length|
|DisplayPort||50 ft. (15.2m)|
|HDMI||50 ft. (15.2m)|
|DVI||50 ft. (15.2m)|
|VGA||200 ft. (71m)|
Note: StarTech.com offers cables longer than what is listed above, including active cables, which typically include built-in active signal boosters that allow for longer cables. Active cables are specifically designed to exceed the suggested maximum lengths and are tested at the listed specifications (for example, the maximum listed resolution).
Video adapters passively adapt a cable from one connector type to another. Video adapters do not change the signal type, or change the video standard.
Examples of common applications for adapters include the following:
DVI-I to VGA
RCA to BNC
Mini DisplayPort to DisplayPort
Couplers (female to female, or male to male)
Note: You can use a coupler to extend a cable for a short distance. However, each coupler that you use can introduce signal loss, which degrades the signal quality.
Video converters actively process and change the signal type from one video standard and convert it to another standard. They are typically used to convert digital to analog and vice versa, but can be used to convert a digital signal to another digital video standard (for example, HDMI to DisplayPort).
Video converters work over short distances from the source to the destination: up to 15 feet or 3 meters.
Video extenders convert an input signal to a higher voltage for transmission over longer distances and then convert the input signal back to the original video standard. The input and the output signal will match on a video extender, as the same video standard is maintained end-to-end. If a cable is extended with adapters or converters, the signal quality degrades.
Note: For more information on using a video adapter or converter with a video extender, see the following FAQ: http://www.startech.com/faq/video_signal_converters_convert_then_extend.
If you need to use a video extender with a video adapter or converter, you should position the adapter or converter as close to the video source as possible. For example, if you need to take a VGA signal from a computer and send it 200 feet to an HDMI® projector, you should convert the signal from VGA to HDMI and use an HDMI extender.
Note: For more information on when to use cables or extenders, see the following FAQ: http://www.startech.com/faq/video_signal_converters_when_to_convert.
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